How old is someone named Unknown?
The average Unknown is 52 years old.
Half of all living Unknowns are between 32 and 73. The average sits between a large older group and a younger one, so many Unknowns are much older than 52.
When was Unknown popular?
Unknown had one big moment, peaking in 1954. 56% of the babies ever named Unknown arrived in a single 15-year stretch.
Popular names of 1954 · The most popular names of the 1950s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 166 | 0 |
| 1910s | 334 | 0 |
| 1920s | 245 | 0 |
| 1930s | 174 | under 100 |
| 1940s | 1,935 | 1,100 |
| 1950s | 8,929 | 6,400 |
| 1960s | 1,269 | 1,000 |
| 1970s | 346 | 320 |
| 1980s | 841 | 810 |
| 1990s | 2,442 | 2,400 |
| 2000s | 769 | 760 |
| 2010s | 1,382 | 1,400 |
| 2020s | 676 | 670 |
How many Unknowns are still alive?
About 15,000 Unknowns are alive in the US today. That's 75% of the roughly 20,000 babies named Unknown since 1880.
Most Unknowns ever born are still alive.
What generation is the name Unknown?
About half of living Unknowns are Baby Boomers, born between 1946 and 1964.
Is Unknown an old name?
Yes. Unknown is older than 80 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Unknown will be 44 in 2056, so its average age will actually fall, as the youngest Unknowns make up more of the total.
Is Unknown a boy or girl name?
Both. 52% of living Unknowns are women and 48% are men.
The women average 55 and the men 49.
Names the same age as Unknown
NAME TWIN
Unknown's name twin is Gwendolyn. Of all 3,713 names on AgeByName, Gwendolyn's age curve is the closest match to Unknown's: 65% alike.
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Questions about the name Unknown
How old is the average Unknown?
The average Unknown in the US is 52 years old. The median is 67, so half are older and half younger.
How many people are named Unknown?
About 15,000 Unknowns are alive in the US today, out of roughly 20,000 babies given the name since 1880.
When was the name Unknown most popular?
In 1954, when about 1,200 baby girls were named Unknown.
Is Unknown a Boomer name?
Yes. About 55% of living Unknowns are Baby Boomers, born between 1946 and 1964.
Is Unknown a boy or girl name?
Both. 52% of living Unknowns are women and 48% are men. The women average 55 and the men 49.
Estimates from Social Security Administration baby-name records (births 1880–2025) and SSA cohort life tables (2026 Trustees Report). Updated each spring. How we calculate this